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1、MAC 1100/1200/1200 ST Servicing Instructions Version 1.2 227 492 20 ENG INT Revision F Caution: During repairs/service interventions, observe the protective measures against damage due to ESD. *GE Medical Systems Information Technologies (GEMS IT) considers itself responsible for the effects on safe
2、ty, reliability, and performance of the equipment, only if: -assembly operations, extensions, readjustments, modifications, or repairs are carried out by GE Medical Systems Information Technologies (GEMS IT) or by persons authorized by GE Medical Systems Information Technologies, -the electrical ins
3、tallation of the relevant room complies with the applicable national and local requirements, and -the instrument is used in accordance with the instructions for use. *This manual contains service information; operating instructions are provided in the operators manual of the instrument. *This manual
4、 is in conformity with the instrument at printing date. *All rights are reserved for instruments, circuits, techniques, and names appearing in the manual. Copyright 2002 GE Medical Systems Information Technologies GmbH Printed in Germany GE Medical Systems MAC 1100/1200/1200 ST V 1.2 Page 3 Informat
5、ion Technologies 227 492 20 Rev. F 1Device description _7 1.1 Block circuit diagram of entire instrument_ 10 1.2Mechanical components _ 11 2Functional description_12 2.1Switching power supply _ 12 2.2PCB NC Battery Charge _ 12 2.2.1Charging circuit for the NC battery _ 12 2.2.2Device behavior depend
6、ing on the state of battery charge_ 13 2.3PCB Control CS_CI _ 13 2.3.1Generation of internal power supplies_ 14 2.3.2Switch On/Off circuit_ 14 2.3.3ECG recording and front-end processing_ 15 2.3.4Controller core_ 16 2.3.5Real time clock _ 17 2.3.6Memory _ 17 2.3.7LCD graphics display interface _ 18
7、2.3.8Keypad interface _ 18 2.3.9Printhead control _ 19 2.3.10Motor control_ 19 2.3.11RS-232 interface _ 20 2.3.12Buzzer _ 20 2.4PCB Modem Supply CS_M ( only US device, 101 168 23 ) _ 20 2.5Internal interfaces_ 20 2.5.1Mechanical interfaces _ 20 2.5.2Electronic interfaces _ 21 2.5.2.1Interface to the
8、 switching power supply_ 21 2.5.2.2Interface to the PCB NC battery charge_ 21 2.5.2.3Interface to the LCD Graphics Display _ 22 2.5.2.4Interface to the keypad_ 23 2.5.2.5Interface to the printhead_ 23 2.5.2.6Interface to the motor_ 24 2.5.2.7Interfaces for production tests _ 24 2.5.2.8Interface to P
9、CB Modem Supply CS_M _ 25 2.6Interfaces to peripherals_ 27 2.6.1Electronic interfaces _ 27 2.6.1.1RS-232 interface _ 27 2.6.1.2Patient input_ 28 2.7Software Updates _ 29 2.8Limitations_ 29 3System test functions _31 3.1General information _ 31 3.2Test start _ 31 3.3Display test_ 31 3.4Keyboard test_
10、 33 3.5Motor test_ 33 3.6Test results_ 34 GE Medical Systems MAC 1100/1200/1200 ST V 1.2 Page 4 Information Technologies 227 492 20 Rev. F 3.7Self-test_ 34 3.8Recording test _ 35 3.9V24 tests_ 35 3.10Time and date _ 37 3.11Electrode test_ 37 3.12Time constant _ 38 3.13Setting the device model_ 38 3.
11、14Switching over the program for interpretation _ 40 3.15Pace enhance _ 41 3.16Serial number _ 41 3.17Ergometer / Treadmills ( only JAPAN device model ) _ 41 4Repair instructions_43 4.1Safety instructions_ 43 4.2Replacing components _ 43 5Troubleshooting tips _47 6Adjustment instructions_51 7Servici
12、ng and maintenance _53 7.1Technical inspection _ 53 7.1.1Visual check_ 53 7.1.2Test functions_ 54 7.1.2.1Recommended testing instruments and accessories_ 54 7.1.2.2Test preparations _ 54 7.1.2.3Operating and display unit performance tests _ 54 7.1.2.4Test for recording speeds 25 and 50 mm/s _ 55 7.1
13、.2.5Device Test result check _ 55 7.1.2.6RS-232 interface test _ 55 7.1.2.7Analysis of the ECG signals and HR value _ 55 7.1.2.8Pacemaker identification test_ 56 7.1.2.9Identification of disconnected electrodes_ 57 7.1.2.10Checking the charge status of the NC battery _ 57 7.1.3Safety Analysis Tests_
14、 57 7.1.3.1General information_ 57 7.1.3.2Protective Earth Resistance Test _ 58 7.1.3.3Measurement of Leakage Current _ 58 7.1.3.3.1Enclosure Leakage Current Test _ 58 7.1.3.3.2Patient Leakage Current Test_ 59 7.2Maintenance, cleaning, disinfection _ 60 8Parts List_61 9Specifications _65 10Device Do
15、cuments _73 GE Medical Systems MAC 1100/1200/1200 ST V 1.2 Page 5 Information Technologies 227 492 20 Rev. F Revision History Each page of this manual has the document number followed by a revision letter, located at the top of the page. This letter identifies the manual update level. The latest let
16、ter of the alphabet corresponds to the most current version of the document. The revision history of this manual is summarized below. DateECO NoRevisionRemarks March 05,1999 AV 1.0, initial release May 10, 1999062 136BSoftware Package for MAC 1100/1200 (Software change) page 55, new MRI June 29, 199
17、9062727CPin 4 Coding pin, page 19, Supplementation to chapter 3.4; page 29 Software Release V 5.02 page 55, new MRI, PCB Control CS_CI , Sheet 9 new Index PCB Control CS_C, new Index PCB Battery Charge CS_CI, new Index February 4, 2000062920DDevice Version V1.1 with Remote Start Input, internal Mode
18、m Supply (MAC1200 US device only) and Software Release V5.1 February 7, 2001064323EDevice Version V1.2 , MAC 1200 ST, Japanese device model , Software Release V5.2 January 9, 2002 068851FSoftware Release V5.21 for MAC1200 and MAC1200 ST GE Medical Systems MAC 1100/1200/1200 ST V 1.2 Page 6 Informati
19、on Technologies 227 492 20 Rev. F GE Medical Systems MAC 1100/1200/1200 ST V 1.2 Page 7 Information Technologies 227 492 20 Rev. F 1 Device description This Service Manual describes device version V1.2 of MAC1100 / MAC1200 / 1200ST. The MAC1100 is a portable electrocardiograph with an integrated pri
20、nting unit. They are used to acquire, record and process ECG signals. The integrated LCD graphics Display shows 3 ECG channels. It also displays status information, filter settings, speed/format, gain and the status of the electrodes. With the setup feature, the user is able to setup the device and
21、the modes for his own needs. The MAC1100 offers 2 modes of operation: Automatic (12-lead) and Manual (6-lead). Transmission of one in the automatic mode aquired ECG to the MUSE or CardioSys system directly or via a modem. It is designed for line-power operation. In addition, a NC-battery with a char
22、ging circuit can be integrated into the instrument as a separate option. In addition, a pump for the KISS system can be integrated into the instrument as a separate option. The patient cable for the acquisition of ECG signals is connected by means of a 15-pin connector as used with MAC 500. Patient
23、cables used with MAC 1000 cannot be connected to the MAC 1200. The MAC1200/1200 ST has all features of the MAC1100, in addition, the following features are included: - NC battery with charging circuit is integrated in general - Arrhythmia as third mode of operation - Automatic mode with CSI protocol
24、 for transmission - Automatic mode with interpretation (Option Code) - Automatic mode with storage for up to 40 ECGs (Option Code) The acquired ECGs can be transmitted to MUSE or CardioSys directly or via a Modem. Additionally the MAC 1200 ST can run stress test operating mode (Option Code ). To con
25、trol stress test devices the MAC 1200 ST has a modified keyboard with additional keys for stress test. MAC1100/1200/1200 ST with version V1.2 has all features of the version V1.0 described above New in version V1.1: Remote Start Input, internal Modem Power Supply (MAC1200 US device only) , Software
26、V5.1 New in Version 1.2 : MAC 1200 ST with operating mode stress test, Japanese device model, Software Release V5.21. Note: MAC1100 has Software Release V5.2 GE Medical Systems MAC 1100/1200/1200 ST V 1.2 Page 8 Information Technologies 227 492 20 Rev. F Variants of the MAC1100/1200 The complete lis
27、t of the variants is included in Section 8 “Parts List”. The following table gives an overview of the different device models of the MAC1100/1200/1200 ST. DeviceDevice ModelManufacturer ID KeypadLabelingMains Voltage MAC1100 MAC1200 MAC1200 ST INTGE Medical Systems IconsInternational230V MAC1100 MAC
28、1200 MAC1200 ST Europe 2GE Medical Systems TextInternational230V MAC1200 MAC1200 ST USAGE Medical Systems TextUSA115V MAC1100 MAC1200 RUSSGE Medical Systems KyrillianInternational230V MAC1200 STJapanGE Medical Systems JapaneseInternational230V Hardware functional blocks: MAC1100 and MAC1200/1200 ST
29、comprises of the same hardware functional blocks. Differences between both are mentioned. List of the main functional blocks: ? Switching power supply ? NC Batteryfor MAC1100 only as an option ? PCB NC Battery chargefor MAC1100 only as an option ? PCB Control CS_CI ? PCB Modem Supply CS_Mfor MAC1200
30、 US device only, from version V1.1 ? Printing unit ? Keypad ? VGA graphics display, monochrome GE Medical Systems MAC 1100/1200/1200 ST V 1.2 Page 9 Information Technologies 227 492 20 Rev. F The description of the functional blocks is valid for MAC1100 and MAC1200/1200 ST Differences between MAC110
31、0 and MAC1200 / 1200 ST in single functional blocks are mentioned within the description of such blocks. GE Medical Systems MAC 1100/1200/1200 ST V 1.2 Page 10 Information Technologies 227 492 20 Rev. F 1.1 Block circuit diagram of entire instrument MAC1100/1200 Version V1.1 ECG Acquisition and Cond
32、itioning Controller Core Real Time Clock buffered Programm- Memory ECG RAM buffered Internal RAM RS232 Driver Pump Interface (not in US Device) Thermal Pinthead Control Motor Control Display Interface Keypad Interface Display Supply Configuration Memory Keypad LCD Grafics Display 1/4 VGA Monochrome
33、Option Pump (not in US Device) NC Battery PCB NC Battery Charge Switching Power Supply +26,5V Line Power Input with Fuse Thermal Printhead Motor RS232 Interface Logic Supply +5V +3.3V Analog Supply Printhead Supply Device On/OFF Control ECG Input Line Power Input MAC1100/1200 V 1.1 14.01.2000 MAC110
34、0:No Modem Supply, No buffered ECG RAM, NC Battery as Option. MAC1200:Modem Supply in US device only, Option Pump not in US device. PCB Control CS_CI Line Power, NC Battery Printing Unit Boot Loader Modem Supply (MAC1200 US only) PCB Modem Supply GE Medical Systems MAC 1100/1200/1200 ST V 1.2 Page 1
35、1 Information Technologies 227 492 20 Rev. F 1.2 Mechanical components The main mechanical components comprise the upper and lower shell of the MAC1100/1200. The lower shell serves as a basic unit to receive the following assemblies: ? Line power input module with fuse ? Switching power supply ? NC Battery ? PCB NC Battery C